The High Pressure System is dominant across the islands with patchy concentrations of Saharan dust (20 - 40 ug/m3) of varying intensity. A lower-level trough is expected to affect the Leewards and northern Windwards tonight which may spread a few shallow showers across our islands. A vigorous tropical wave is expected to approach the Windward Islands bringing increased cloudiness across St.Vincent and the Grenadines (SVG) by Wednesday afternoon